Re: How can Autoconf help with the transition to stricter compilation defaults?

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> On 15 Nov 2022, at 13:30, Zack Weinberg <[email protected]> wrote:
>=20
> On Tue, Nov 15, 2022, at 12:03 AM, Sam James wrote:
>>> On 13 Nov 2022, at 00:43, Paul Eggert <[email protected]> wrote:
>>>=20
>>> Although there will be problems with people who run "./configure =
CFLAGS=3D'-Werror'", that sort of usage has always been problematic and =
unsupported by Autoconf, so we can simply continue to tell people "don't =
do that".
>>>=20
>>=20
>> Is there somewhere in the autoconf docs we actually say this?
>>=20
>> I've seen a few instances of folks adding it themselves very
>> early in their configure scripts (which is a pain for distros
>> anyway) which then ends up affecting the rest.
>=20
> It's mentioned in the NEWS entry for 2.70: =
https://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS#n170

Thanks, sorry, I didn't think to check NEWS. This is good enough for me =
to link folks to, anyway, for the time being.

> Note that there have been bug reports for cases where running builds =
with more warnings than configure uses (and I think also -Werror), means =
that configure checks spuriously succeed (i.e. configure reports that =
something is available, but then you get compiler errors on the code =
that tries to use it).  I can't remember any concrete examples right =
now, though.

I can totally imagine that, don't stress about the examples.


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